Hoist.



PATENTED JAN. 30, 1906.

E. Y. MOORE.

HOIST.

APPLICATION FILED 110V. 2, 1905.

4 SHEETS-SHEET 1.

Wtnedo'ed PATENTED JAN. 30, 1906.

E. Y. MOORE.

HOIS'I'.

APPLICATION rmm NOV. 2, 1905.

4; SHEETS-SHEBT 2- PATENTED JAN. 30, 1906.

E. Y. MOORE.

HOIST.

APPLICATION FILED NOV. 2, 1905.

4 SHBETS-BHEBT 3.

79M; mam/w) v Wifin edufed.

No. 811,077. PATENTED JAN. 30, 1906. E. Y. MOORE.

HOIST.

APPLICATION FILED NOV. 2, 1905 4; SHEETS-SHEET 4-- Gifi-W I ymv 5 5 of Fig. 1.

ED STATES PATNT OFGF.

Specification of Letters Patent.

Patented J an. 30, 1906.

Application filed November 2, 1905. Serial No. 285,577.

To all whom it may concern:

Be it known that I, EDWARD Y. MOORE, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented a certain new and useful Improvement in Hoists, of which the following is a'full, clear, and exact description, reference being had to the accompanying drawings.

The object of this invention is to provide a simple and efficient hoist so arranged as to require very little head-room.

The invention is particularly well adapted as an ammunition-hoist on board vessels, where it is very essential that no space be lost. My hoist is adapted to travel upon an I-beam supported on the under side of the deck and to raise a shell within a few inches of the I-beam.

The essential features of the hoist are hereinafter more fully explained, and definitely summarized in the claims.

In the drawings, Figure 1 is a side elevation of the hoist complete. Fig. 2 is an elevation from the opposite side. Fig. 3 is a plan. Fig. 4c is an end view. Fig. 5 is a vertical cross-section substantially on the offset line Fig. 6 is a perspective view of the hoist with a simplified drive. Fig. 7 is a sectional detail on the line 7 7 of Fig. 6. Fig. 8 is a sectional detail on the line 8 8 of Fig. 1.

In the drawings the supporting I-beam is designated A. This may be secured against the under side of a deck, as shown at A in Fig. 4. The hoist has a frame B, which extends beneath the I-beam and up on opposite sides of it, where it carries wheels O, tracking on the lower flange of the I-beam.

The frame B of the hoist is made in two halves divided vertically, the two halves being clamped together by bolts D and D. J ournaled on studs 1), projecting inwardly from bosses on the inner sides of the two side plates Z Z) of the frame, are the supportingwheels O referred to. Projecting outward from the frame are studs Z2 which are secured in bosses I)" on the frame. On each of these studs 1) is journaled a wheel E, which has gear-teeth c on a portion of its periphery,

while another portion 6 is formed to receive an elevating flexible member, shown as the cable F. This wheel E is recessed on its inner side at a to allow room for the bosses and nuts on the outer side of the frame and at the same time bring the gear close to the frame. Depending from the frame are integral lugs in which is journaled a shaft G, which has on it a pair of pinions g, meshing with the gears 0. When the shaft G is rotated, the wheels E, being driven thereby, elevate the grapple H, carried by cables, and with it the shell, (indicated by Z.) It is to be noticed that the axes of the wheels E are opposite the sides of the I-beam instead of these wheels being carried in the more usual way on a shaft extending below the I-beam. This allows the grapple to be drawn up very close to the under side of the I-beamin fact, until it strikes the bumper o provided for it on the frame.

The grapple H is peculiarly formed, consisting of a pair of arms it, having longitudinal extensions it at their lower ends and pivoted together where their arms cross on a stud 72 Journaled on this stud between the arms is a sheave if, and in the upper end of each of the arms is a sheave lb. The cable F passes downward beneath one of the sheaves h and then upward across the central sheave [L3 and then downward beneath the other sheave 7t. Owing to its construction, the weight of the load constrains the arms toward each other, securely holding the load, for to open the arms and release the load would require the elevation of the load, while of course the tendency of the load is downward.

The shaft G- may be rotated by any suit able means. For example, a hand-wheel Q may be applied directly to the shaft, as shown in Fig. 6, which is suitable for comparatively light loads. For heavier loads I provide reduction-gearing between this shaft and the hand-wheel, as shown in Figs. 1 to 5. In such cases the shaft G is made hollow, and extending through it is another shaft J". On this latter shaft is a pinion 7, meshing with an idle gear K, journaled on the stud I, mounted in projecting lugs b of the frame. Rigid with this idle gear is a pinion Z0, meshing with the gear 9 on the shaft G. The hand-wheel Qis preferably not rigidly fastened to the driving-shaft, but loose enough to allow it to control a friction-brake to make the hoist selfsupporting. The construction may be similar to that shown in my prior patent, No. 794,997, of July 18, 1905, comprising in a simplified form a disk L, loose upon the shaft and. having ratchet-teeth adapted to be engaged by a pawl M, carried by the frame, and a collar N, rigid on the shaft and having an inclined face against which inclines on the hand-wheel bear to force the hand-wheel into frictional engagement with the disk when the hand-wheel is turned in a direction to elevate the load. In elevating such load the handwheel, disk, and shaft turn as a unit, the teeth of the disk clicking idly under the pawl. When the raising rotation of the hand-wheel ceases, the load tending to run down holds the brake set, and the pawl M prevents the disk rotating in the opposite direction, so that the load is held at whatever point it may be. To lower the load, the hand-wheel is turned in the reverse direction, releasing the brake and allowing the load to descend, the handwheel during the descent being always kept in advance of the load by means of the handchain R.

The hoist as shown is adapted to travel along the I-beam. To look it at any desired position, I provide a pair of levers T, having hardened-steel lips 2f adapted to engage the edges of the I-beam flange. Between the other ends of these levers is a wedge 1 formed on the periphery of a disk 12, journaled on a stationary bolt 9 A handle 9 depending from the disk, may swing the wedge in one direction or the other to force the levers outwardly to cause the lips to engage the flange or to allow a spring 25 between the levers to force them apart, releasing the flange. To hold the disk in desired position, I compress against it a spring p*, which surrounds the bolt 2 and occupies a recess in the frame aind1 bears against a washer on the side of the c is z.

Mounted on the opposite sides of the frame are guards U U for the elevating cable. These guards are carried by the studs Z1 which support the elevating-wheels, and by bolts 0, which also hold two of the supporting-wheels in place. Each of these chainguards has a portion a and a projecting flange 15 extending across the periphery of the elevating-wheels. The chainguard U on the side where the hand-wheel is has in addition outwardly-extending flanges a to form a guard for the hand-chain R.

It will beseen that my hoist is simple and comprises few parts, that it may be shifted and locked as desired, and that it is adapted to occupy very little head-room, so that it may raise the material close to the supporting-beam. The grapple securely holds the load, and the raising mechanism, while being of high efliciency, is self-locking.

Having thus described my invention, I claim 1. In a hoist, the combination of a frame having a pair of side members, supporting- Wheels on the inner sides of said members, elevating-wheels carried on the outer sides of said members, a cross-shaft extending through the frame below said supporting-wheels, and gears on said cross-shaft connected with gears on the elevating-wheels.

2. The combination with a beam having flanges extending in opposite directions, of a hoist located beneath and on opposite sides of said beam, said hoist having supportingwheels adapted to ride on the upper sides of said flanges, journals for the elevating-wheels opposite the respective sides of the supporting-beam, and elevating-wheels on such journals.

3. The combination of a beam having a flange along its lower edge, a hoist having supporting-wheels adapted to ride on said flange, said hoist having elevating-wheels journaled on its sides opposite the supporting-wheels and a drivingshaft extending crosswise beneath the beam and operatively connected with the elevating-wheels.

4C. In a hoist, in combination, a frame having side walls and a connecting part, supporting-wheels carried on the inner faces of side walls, elevating-wheels carried on the outer faces of the side walls, and a drivingshaft extending crosswise of the frame and operatively connected with the elevatingwheels.

5. In a hoist, the combination of a frame having a pair of side members, supportingwheels carried on the inner faces of said side members, studs projecting outwardly from the side members, elevating-wheels supported on said studs, and means for rotating said elevating-wheels.

6. In a hoist, in combination, a U-shaped frame having sides and an under connecting part, supporting-wheels carried on the inner faces of the sides, studs projecting outwardly from the sides, bosses on the outer sides supporting said studs, elevating-wh eels journaled on said studs, and recessed on their inner faces to clear the bosses, and meansfor rotating said elevating-wheels.

7. In a hoist, the combination of a frame carrying bosses on its outer sides, studs projecting outwardly from said bosses,wheels on said studs and recessed on their inner faces to clear the bosses, gear-teeth formed on the periphery of said wheels outside of said recesses. driving mechanism geared with said wheels by means of said gear-teeth, and the flexible elevating member mounted on said wheels.

8. In a hoist, the combination of a frame, bosses on the outer sides thereof, studs projecting from said bosses, elevating-wheels on said studs, said wheels being formed with gear-teeth and an annular external groove for the reception of a flexible elevating member, a shaft journaled in said frame, and pinions on said shaft meshing with said gear-teeth.

9. In a hoist, the combination of a frame having a pair of side members, supportingwheels carried on the inner faces of said side members, studs projecting outwardly from the side members, wheels supported on said studs and having gear-teeth and formed to receive the flexible supporting member, and means engaging said gear-teeth for rotating them.

10. In a hoist, the combination of a frame having a pair of side members, supportingwheels carried on the inner faces of said side members, studs projecting outwardly from the side members, wheels supported on said studs and having gearteeth and formed to receive the flexible supporting member, a shaft journaled in the frame, and a pair of pinions on said shaft meshing with said gears.

11. In a hoist, the combination of a frame made in two halves, each half comprising a side member and an under member, and bolts connecting the two halves to make a U-shaped structure, supporting-wheels carried on the inner faces of the side members, studs projecting from the outer faces of the side members, geared elevating wheels journaled on said studs, a cross-shaft journaled in said frame beneath the side members and carrying a pair of pinions meshing with the gear, and means for rotating such cross-shaft.

12. In a hoist, the combination of a frame, supporting-wheels carrying the same, elevating-wheels mounted on opposite sides of the frame, a cross-shaft journaled in said frame and carrying a pair of pinions meshing with gear-teeth on the elevating-wheels, said shaft being hollow, another shaft occupying said hollow shaft and carrying a pinion, an idle gear meshing with such pinion, a pinion rigid with said idle gear, and a gear on said hollow shaft meshing with such idle pinion.

13. In a hoist, the combination of a frame made in two halves, each half comprising a side member and an under member, bolts connecting the two halves to make a U-shaped structure, studs projecting from the outer faces of the side members, elevating-Wheels journaled on said studs and having gear-teeth, a cross-shaft journaled in downwardly-extending lugs of said frame beneath the side members, a pair of pinions on said shaft meshing with said gear-teeth, said shaft being hollow, another shaft occupying said hollow shaft, and gearing connecting said shafts.

14. In a hoist, in combination, aframe having sides and a cross connecting part, supporting-wheels carried on the inner faces of the sides, studs projecting outwardly from the sides, bosses on the outer sides supporting said studs, elevating-wheels journaled on said studs, and means for rotating said elevatingwheels.

15. The combination with a beam having flanges extending in opposite directions, of a hoist located beneath and on opposite sides of said beam, said hoist having supportingwheels adapted to ride on the upper sides of said flanges, said hoist having a pair of opposed elevating-wheels opposite the respective sides of the supporting-beam, whereby the head-room is diminished.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

EDWARD Y. MOORE. Witnesses:

Amalia H. BATES, H. B. SULLIVAN. 

